122320891200 has 168 divisors, whose sum is σ = 414260588800. Its totient is φ = 31566643200.

The previous prime is 122320891183. The next prime is 122320891201. The reversal of 122320891200 is 2198023221.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122320891201) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 262225 + ... + 559824.

Almost surely, 2^122320891200 is an apocalyptic number.

122320891200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

122320891200 is an abundant number, since it is smaller than the sum of its proper divisors (291939697600).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

122320891200 is a wasteful number, since it uses less digits than its factorization.

122320891200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 822105 (or 822090 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 30.

The spelling of 122320891200 in words is "one hundred twenty-two billion, three hundred twenty million, eight hundred ninety-one thousand, two hundred".